package com.bidepan.anno;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

//加上元注解
//1.在属性上生效
@Target(ElementType.FIELD)
//2.在运行时生效
@Retention(RetentionPolicy.RUNTIME)
public @interface Di {
}
